H1000 Oil Bath Hub Stud 1/2"-20 x 2" 290-034169

H1000 Oil Bath Hub Stud 1/2"-20 x 2" 290-034169

Press-In Knurled Hub Stud

The H1000 Oil Bath Hub Stud 290-034169 is a replacement press-in wheel / hub stud used on compatible EZ Loader H1000 style oil bath trailer hubs. This stud measures 1/2"-20 x 2" and has a knurled press-in end that seats into the hub. Once installed, the trailer wheel is secured with a compatible lug nut.

This part is used on compatible H1000 hub applications that use pressed-in wheel studs and lug nuts, not direct-thread lug bolts or screw-in studs. Correct stud fitment matters because the hub, knurl style, thread pitch, stud length, wheel, and lug nut all need to work together to safely clamp the trailer wheel to the hub.

The stud is zinc plated for corrosion resistance in marine trailer use. It is commonly replaced when the existing stud is corroded, stripped, damaged, stretched, loose in the hub, spinning in the hub, or no longer holds the lug nut properly.

Key Features

• Replacement press-in wheel / hub stud for compatible H1000 style oil bath trailer hubs
• Knurled end seats into the compatible hub
• 1/2"-20 thread size
• 2" stud length
• Zinc-plated steel for marine trailer corrosion resistance
• Used with a compatible lug nut to secure the trailer wheel to the hub

Important Difference: Press-In Stud vs. Lug Bolt vs. Screw-In Stud

This part is a press-in knurled wheel / hub stud for compatible H1000 oil bath trailer hubs. It is not a lug bolt or screw-in stud.

A press-in stud has a knurled end that seats into the hub. The trailer wheel is then secured with a separate lug nut. A lug bolt passes through the wheel and threads directly into the hub. A screw-in lug stud threads into an older threaded hub and also uses a separate lug nut.

Before ordering, compare your existing fastener style, hub family, thread size, stud length, and knurl style.

Typical EZ Loader Trailer Applications

This stud is commonly used on compatible EZ Loader boat trailers equipped with H1000 style oil bath wheel hubs. These hubs are part of the trailer’s running gear system and support the wheel, bearings, seal, hub cap, and oil bath lubrication setup.

Because EZ Loader hubs and fasteners can vary by trailer model and production year, confirm your H1000 hub style and stud dimensions before ordering.

Associated / Compatible Parts

These related parts may be used when servicing compatible EZ Loader oil bath trailer hubs. Confirm your specific hub style before ordering.

Note: The BT150A hub stud and 1/2" lug bolt shown above are comparison parts only. They are different fastener styles and should not be substituted for this H1000 oil bath hub stud unless your hub specifically uses that style.

Installation Considerations

• Confirm the hub is a compatible H1000 style oil bath trailer hub before installation.
• Confirm the replacement stud uses the correct knurled press-in style for your hub.
• Inspect the hub stud hole, wheel seat, and lug nut before reassembly.
• Do not force the wrong knurl size into the hub, as this may damage the hub or prevent the stud from seating correctly.
• Replace damaged, stretched, corroded, loose, or stripped studs before towing.
• Use the correct matching lug nut for the wheel and hub setup.
• Start all lug nuts by hand to reduce the chance of cross-threading.
• Torque wheel fasteners to the proper specification for your trailer, hub, and wheel.

H1000 Oil Bath Hub Stud Fitment Guidance

This is not a universal trailer wheel stud.

• Confirm your hub style is H1000 or compatible with this stud.
• Confirm the hub is an oil bath hub.
• Confirm your hub uses press-in knurled wheel studs.
• Confirm the thread size is 1/2"-20.
• Confirm the stud length is 2".
• Confirm your setup uses wheel studs and lug nuts, not direct-thread lug bolts or screw-in studs.

Questions or Need Help Matching Parts?

We’re based in Hardeeville, South Carolina, serving customers nationwide.

📞 Call us — we answer the phone and help you get it right.
📧 Send photos if needed — often the fastest way to confirm fitment.

We focus on matching parts correctly the first time.

Real-World Insight

Press-in wheel studs depend on the knurled section seating tightly in the hub. If a stud spins in the hub, feels loose, has damaged threads, or will not hold torque properly, it should be replaced before towing. On H1000 oil bath hubs, it is also a good time to inspect the hub cap, oil level, oil condition, seal area, bearing condition, and lug nuts while the wheel is off.

What to Have Ready When You Call

• Trailer year, make, and model
• VIN, if available
• Hub style: H1000 oil bath or other hub type
• Existing stud thread size and length
• Press-in or screw-in stud style
• Photos of the hub, wheel, lug nut, and damaged stud